CN114904440B - Automatic liquid feeder of centrifuging tube - Google Patents
Automatic liquid feeder of centrifuging tube Download PDFInfo
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- CN114904440B CN114904440B CN202210840353.7A CN202210840353A CN114904440B CN 114904440 B CN114904440 B CN 114904440B CN 202210840353 A CN202210840353 A CN 202210840353A CN 114904440 B CN114904440 B CN 114904440B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/20—Mixing the contents of independent containers, e.g. test tubes
- B01F31/25—Mixing the contents of independent containers, e.g. test tubes the containers being submitted to a combination of movements other than within a horizontal plane, e.g. rectilinear and pivoting movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/712—Feed mechanisms for feeding fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/23—Mixing of laboratory samples e.g. in preparation of analysing or testing properties of materials
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- Chemical Kinetics & Catalysis (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention discloses an automatic liquid adding device of a centrifuge tube, which comprises a bearing block which is positioned in an outer box body and is provided with a bearing groove and a limiting slot, wherein the bearing block is driven to rotate by a driving motor, the outer box body is connected with a cover plate, the cover plate is connected with a limiting inserted rod which extends into the limiting slot, the inner wall of the bearing groove is connected with an elastic backing plate, a vibrating mechanism is connected with a vibrating head for compressing the elastic backing plate, the limiting inserted rod rotatably extends out of a rotating column, the rotating column is connected with a first clamping block which is clamped with a second clamping block on the inner wall of the limiting slot, a lower pressing rod which is in press fit with the vibrating mechanism is slidably extended out of the limiting inserted rod, the rotating column is provided with a through hole for connecting an inclined ring groove, and the lower pressing rod is connected with an inserted block which is inserted into the inclined ring groove, the centrifugal tube is made to vibrate up and down while rotating, and the mixing efficiency and the mixing effect of liquid in the centrifugal tube are improved.
Description
Technical Field
The invention relates to the technical field of medical instrument centrifuge tubes, in particular to an automatic liquid adding device for a centrifuge tube.
Background
In medical testing, serum test, coagulation test, agglutination test, ELISA test, etc. are generally performed, and before sample testing, the concentration of a sample to be tested is generally adjusted due to the difference in the precision of a testing instrument or test detection indexes. This requires the testing personnel to perform dilution, centrifugation, etc. on the sample to be tested to meet the requirements of sample testing. Before testing a sample to be tested, an operator needs to add a diluent into a centrifuge tube in batches and mix the diluent uniformly to dilute the sample, which is usually performed manually at present. This just needs medical personnel constantly repetitious to add the diluent in the centrifuging tube to wave the operation that the centrifuging tube carries out mixing liquid, not only working strength is big, and when shaking the mixing manually, the dynamics of shaking is difficult to keep invariable, causes the mixing effect to be difficult to guarantee.
In the prior art, an automatic liquid feeder for centrifuge tubes (with a main classification number of B01F 11/00) with a publication number of CN110052201B comprises an oscillation platform, wherein a plurality of centrifuge tube accommodating tanks are arranged on the oscillation platform, a liquid feeding mechanism is arranged above the oscillation platform and comprises a supporting platform, a plurality of toothed belts are arranged on the supporting platform, a movable rotary liquid feeding assembly with an interval meshed with the toothed belts is movably connected on the supporting platform and comprises a rotary gear with an interval meshed with the toothed belts, the rotary gear is coaxially and fixedly connected with a supporting shaft with a hollow inside, a liquid conveying pipe is sleeved in the hollow part of the supporting shaft, a liquid feeding disc communicated with the liquid conveying pipe is coaxially and fixedly connected at one end of the supporting shaft, a driving assembly for driving the rotary gear to rotate is fixedly connected at one end of the supporting platform, and the operation of operators in the prior art for repeatedly and manually adding diluent and mixing in batches is solved, the existing working strength is large, and the blending effect is difficult to ensure.
However, the prior art still has major defects, such as: the centrifuging tube that prior art made in the centrifuging tube holding tank shakes from top to bottom through shaking platform work and comes mixing liquid, and liquid in the centrifuging tube can only shake from top to bottom simply, and it is relatively poor to lead to the mixing effect of above-mentioned technique to liquid in the centrifuging tube, is difficult to guarantee the mixing quality of liquid in the centrifuging tube, and above-mentioned technique needs the rolling rotary gear to carry out the liquid feeding to the centrifuging tube one by one, has the less problem of liquid feeding efficiency.
Disclosure of Invention
The invention aims to provide an automatic liquid adding device for a centrifugal tube, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
an automatic liquid feeder of a centrifuge tube comprises a bearing block, wherein a plurality of bearing grooves are formed in the upper end of the bearing block, the bearing block is rotatably arranged in an outer box body and driven to rotate by a driving motor, a limiting slot which is coincident with the axis of a driving rod of the driving motor is formed in the upper end of the bearing block, a cover plate is slidably connected to the upper side of the outer box body, a limiting insertion rod which extends into the limiting slot is fixedly connected to the cover plate, a liquid feeding through groove which is aligned with the bearing grooves up and down is formed in the cover plate, and a liquid feeding mechanism which is communicated with the liquid feeding through groove is connected to the upper side of the cover plate;
an elastic cushion plate is fixedly connected to the inner wall of the lower end of the bearing groove, the lower ends of the bearing groove and the limiting slot are communicated with the vibration cavity, a vibration mechanism is arranged in the vibration cavity in a vertically sliding mode, an elastic connecting block is fixedly connected between the vibration mechanism and the inner wall of the vibration cavity, and the upper end of the vibration mechanism is fixedly connected with a vibration head which extends into the bearing groove and presses the elastic cushion plate;
the utility model discloses a spacing inserted bar, including spacing inserted bar, vibration mechanism, lower extreme, rotation post, the shaft outside fixedly connected with lower extreme open-ended first fixture block that spacing inserted bar lower extreme rotated to stretch out to have the rotation post, and rotates the first fixture block of shaft outside fixedly connected with lower extreme that the post stretches out spacing inserted bar, and spacing slot inner wall fixedly connected with cooperation stretches into the second fixture block of first fixture block opening part, slide in the spacing inserted bar and stretch out the lower bar that has with the crowded press fit of vibration mechanism, and the through-hole that supplies the lower bar to pass is seted up along its axial to the rotation post, and through-hole inner wall is connected with the ascending inclined ring groove of slope, and the inserted block of lower bar fixedly connected with in inserting inclined ring groove.
Preferably, the inner wall of the outer box body is rotatably connected with a rotary supporting plate, the bearing block is fixedly connected to the center of the upper end of the rotary supporting plate, the center of the lower end of the rotary supporting plate is fixedly connected with a driving rod of a driving motor, and the guide cylinder outside the driving rod is sleeved with the lower end of the rotary supporting plate fixedly connected with a sleeve.
Preferably, the vibration mechanism comprises an extrusion plate located right below the limiting slot and a plurality of connecting plates arranged right below the bearing slot in a one-to-one correspondence manner, the extrusion plate and the connecting plates are fixedly connected through connecting rods, and the vibration head is fixedly connected above the connecting plates.
Preferably, the elastic connecting block is fixedly connected between the extrusion plate and the bottom wall of the vibration cavity, the extrusion plate is fixedly connected with a guide slide rod which downwards slides to penetrate through the elastic connecting block, and the bottom wall of the vibration cavity is connected with a slide rod slot for inserting the guide slide rod.
Preferably, the extension groove that supplies the rotation post to stretch out is seted up to spacing inserted bar lower extreme, and stretches out the groove upper end and be connected with the inside spacing rotary groove that rotates and set up spacing plectane, and rotates post upper end and spacing plectane fixed connection, spacing rotary groove top is connected with the sliding tray that inside slip set up down the depression bar, and the depression bar passes sliding tray, spacing plectane and rotation post downwards in proper order, the sliding tray lateral wall is connected with the direction slide, and depression bar fixedly connected with slip the slider in the direction slide.
Preferably, the liquid feeding mechanism comprises a liquid pushing cylinder, a piston push plate is arranged in the liquid pushing cylinder in an up-down sliding mode, the liquid pushing cylinder is fixedly connected to the upper portion of the cover plate and communicated with the liquid feeding through groove through a communicating hole, a stop block is connected to the inner wall of the communicating hole in an up-down sliding mode and fixedly connected with the piston push plate through a stop block connecting rod, and the piston push plate is fixedly connected with a push-pull rod extending out of the liquid pushing cylinder upwards.
Preferably, the upper end of the push-pull rod is fixedly connected with a push-pull block.
Preferably, the liquid feeding mechanism further comprises a liquid storage tank, the liquid storage tank is communicated with the bottom of the liquid pushing cylinder through a liquid feeding pipe, and a one-way valve for preventing the fluid from flowing into the liquid storage tank from the liquid pushing cylinder is arranged at the communication position of the liquid pushing cylinder and the liquid feeding pipe.
Preferably, the liquid storage tank is provided with a liquid inlet in which a liquid inlet valve is arranged.
Compared with the prior art, the invention has the beneficial effects that:
according to the automatic liquid adding device for the centrifuge tube, the liquid feeding mechanism aligned with the bearing groove is arranged on the cover plate, an operator can add diluent into the centrifuge tube by driving the liquid feeding mechanism without arranging a movement mechanism to add the diluent into each centrifuge tube one by one, the liquid adding efficiency is obviously improved while the movement mechanism is omitted, the rotation of the bearing block is driven by the driving motor to be matched with the vertical vibration of the vibration mechanism, the centrifuge tube is vibrated vertically while rotating, the mixing efficiency and the mixing effect of the liquid in the centrifuge tube are improved, the vertical vibration of the vibration mechanism is provided by matching of the limiting insertion rod, the rotating column and the lower pressing rod, an electric cylinder and a motor are not required to be additionally arranged to independently drive the vibration mechanism to vibrate vertically, the linkage effect between structures is improved, and the low-carbon concept of energy conservation and emission reduction is met.
Drawings
FIG. 1 is a schematic view of a vibrating head pressing an elastic pad according to the present invention;
FIG. 2 is a schematic top view of the carrying block and the outer case of the present invention;
FIG. 3 is a schematic top view of the cover plate of the present invention;
FIG. 4 is a schematic cross-sectional view of a liquid feeding mechanism according to the present invention;
FIG. 5 is a cross-sectional view of the inner structure of the bearing block of the present invention;
FIG. 6 is a schematic top view of the vibrating mechanism of the present invention;
FIG. 7 is a schematic cross-sectional view of the internal structure of the limit insert rod of the present invention;
FIG. 8 is a three-dimensional view of the present invention showing the push rod passing through the rotating post;
FIG. 9 is a schematic three-dimensional cross-sectional view of the push rod of the present invention through the rotating post;
FIG. 10 is a schematic view of the vibrating head of the present invention away from the resilient pad;
FIG. 11 is an enlarged view of the limiting insert rod and its connection structure shown in FIG. 10;
FIG. 12 is an enlarged view of the lower press bar of FIG. 11 and its connection structure.
In the figure: 1 outer box body, 2 bearing blocks, 201 bearing grooves, 202 limit inserting grooves, 203 vibration cavity, 204 sliding rod inserting grooves, 3 driving motors, 4 cover plates, 41 liquid feeding through grooves, 5 limit inserting rods, 51 extending grooves, 52 limit rotating grooves, 53 sliding grooves, 54 guide sliding ways, 6 elastic backing plates, 7 elastic connecting blocks, 8 vibration heads, 9 rotating columns, 91 inclined ring grooves, 10 first clamping blocks, 11 second clamping blocks, 12 downward pressing rods, 13 inserting blocks, 14 rotating supporting plates, 15 guide cylinders, 16 extruding plates, 17 connecting plates, 18 connecting rods, 19 guide sliding rods, 20 limit circular plates, 21 sliding blocks, 22 liquid pushing cylinders, 221, 23 piston pushing plates, 24 stopping blocks, 25 stopping block connecting rods, 26 push-pull rods, 27 push-pull blocks, 28 liquid storage tanks, 29 liquid feeding pipes, 30 one-way valves, 31 liquid feeding valves and 32 centrifuge tubes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-12, the present invention provides a technical solution:
the first embodiment is as follows:
an automatic liquid adding device for a centrifuge tube comprises a bearing block 2 with six bearing grooves 201 formed in the upper end face, the bearing block 2 is a cylinder, the six bearing grooves 201 are uniformly distributed on the upper end face of the bearing block 2 in an annular shape, when in use, the centrifuge tube 32 filled with detection liquid is inserted into the bearing grooves 201 to perform subsequent mixing operation, the bearing block 2 is rotatably arranged in an outer box body 1 with an opening at the upper end, the inner wall of the outer box body 1 is rotatably connected with a rotating supporting plate 14, the lower end of the bearing block 2 is fixedly connected to the center of the upper end of the rotating supporting plate 14, the center of the lower end of the rotating supporting plate 14 is fixedly connected with a driving rod of a driving motor 3, the driving motor 3 drives the bearing block 2 to rotate through the rotating supporting plate 14, the bearing block 2 drives the centrifuge tube 32 in the bearing groove 201 to rotate together, so as to mix the detection liquid in the centrifuge tube 32, the lower end of the rotating supporting plate 14 is fixedly connected with a guide cylinder 15 sleeved outside the driving rod, the guide cylinder 15 is arranged to guide the rotating process of the rotating supporting plate 14, so that the stability of the rotating process of the rotating supporting plate 14 and the bearing block 2 is improved;
outer box 1 top sliding connection has apron 4, the rectangular frame of apron 4 lower extreme pastes with outer box 1 outer wall slip and leans on, realize bearing block 2 sealed through covering apron 4 in outer box 1 top, avoid impurity such as external dust to fall into centrifuging tube 32, cause the problem that the testing result of follow-up detection liquid deviates, bearing block 2 upper end is seted up with the spacing slot 202 of the coincidence of driving rod axis of driving motor 3, spacing slot 202 has been seted up to bearing block 2 upper end center department promptly, and apron 4 fixedly connected with stretches into spacing inserted bar 5 in spacing slot 202, spacing inserted bar 5 inserts in spacing slot 202 and not together rotatory along with bearing block 2, spacing inserted bar 5 carries out spacing direction to the course of rotation of bearing block 2, improve the stability of the course of rotation of bearing block 2.
Example two:
the second embodiment is added with a mechanism for driving the centrifugal tube 32 to vibrate on the basis of the first embodiment, namely: the inner wall of the lower end of the bearing groove 201 is fixedly connected with an elastic cushion plate 6, the centrifuge tube 32 is inserted into the bearing groove 201, the lower end of the centrifuge tube 32 is pressed on the elastic cushion plate 6, the lower ends of the bearing groove 201 and the limiting slot 202 are communicated with the vibration cavity 203, a vibration mechanism is arranged in the vibration cavity 203 in a vertically sliding manner, an elastic connecting block 7 is fixedly connected between the vibration mechanism and the inner wall of the vibration cavity 203, the upper end of the vibration mechanism is fixedly connected with a vibration head 8 which extends into the bearing groove 201 and presses the elastic cushion plate 6, the vibration mechanism drives the vibration head 8 to press the elastic cushion plate 6 upwards under the support of the elastic connecting block 7, the lower pressure rod 12 intermittently presses the vibration mechanism downwards and leaves the vibration mechanism upwards, when the lower pressure rod 12 presses the vibration mechanism downwards, the vibration mechanism drives the vibration head 8 to leave the elastic cushion plate 6 downwards, and the vibration mechanism slides downwards to enable the elastic connecting block 7 to generate elastic deformation, when the lower pressure rod 12 leaves the vibration mechanism upwards, the vibration mechanism slides upwards to reset under the elastic action of the elastic connecting block 7, the vibration mechanism drives the vibration head 8 to press the elastic base plate 6 upwards again, so that during the process that the lower pressure rod 12 intermittently presses the vibration mechanism downwards and upwards away from the vibration mechanism, the vibrating head 8 intermittently and upwardly presses the elastic base plate 6 under the driving of the vibrating mechanism, the elastic base plate 6 is separated from the elastic base plate 6 downwards, the elastic base plate 6 vibrates up and down under the action of the vibrating head 8, the elastic base plate 6 vibrates up and down and enables detection liquid in the centrifuge tube 32 to vibrate up and down, and the mixing operation of the detection liquid is realized, compared with the centrifuge tube 32 which only vibrates up and down in the prior art, the centrifuge tube 32 is driven to rotate by the bearing block 2, the vibrating head 8 drives the centrifuge tube 32 to vibrate up and down through the elastic base plate 6 to be matched together, so that the mixing efficiency of the detection liquid is further improved, and the mixing effect of the detection liquid is ensured;
the lower end of the limiting inserted rod 5 is rotatably extended with a rotating column 9, the axes of the limiting inserted rod 5 and the rotating column 9 are superposed, the lower end of the limiting inserted rod 5 is provided with an extending groove 51 for the rotating column 9 to rotatably extend, the outer side of the column body of the rotating column 9 extending out of the limiting inserted rod 5 is symmetrically and fixedly connected with two first fixture blocks 10 with lower end openings, the inner wall of the limiting slot 202 is fixedly connected with two second fixture blocks 11 which are respectively inserted into the openings of the two first fixture blocks 10 in a matching way, the limiting inserted rod 5 extends into the limiting slot 202 to enable the first fixture blocks 10 and the second fixture blocks 11 to be matched and clamped, the bearing block 2 rotates and drives the rotating column 9 to rotate together through the clamping effect of the first fixture blocks 10 and the second fixture blocks 11, the upper end of the extending groove 51 is connected with a limiting rotating groove 52 internally and rotatably provided with a limiting circular plate 20, the upper end of the rotating column 9 is fixedly connected with the limiting circular plate 20, and the setting of the limiting circular plate 20 has a limiting effect on the rotating column 9, the rotating column 9 and the limiting inserted rod 5 are in stable rotating connection, and the problem that the rotating column 9 is separated from the limiting inserted rod 5 is solved;
a lower pressure rod 12 extends downwards in the limiting inserted rod 5 in a sliding manner, the vibration mechanism is positioned under the lower pressure rod 12 and is in extrusion fit with the lower pressure rod 12, a through hole for the lower pressure rod 12 to pass through is formed in the rotating column 9 along the axial direction of the rotating column, namely, the axes of the limiting inserted rod 5, the rotating column 9 and the lower pressure rod 12 are superposed, a sliding groove 53 in which the lower pressure rod 12 is arranged in a sliding manner is connected above the limiting rotating groove 52, the lower pressure rod 12 sequentially passes through the sliding groove 53, the limiting circular plate 20 and the rotating column 9 downwards, a guide slideway 54 is connected on the side wall of the sliding groove 53, a sliding block 21 which is inserted into the guide slideway 54 in a sliding manner is fixedly connected with the lower pressure rod 12, the guide slideway 54 is matched with the sliding block 21 to guide the lower pressure rod 12 in a limiting manner, so that the lower pressure rod 12 can only slide upwards and downwards but cannot rotate, an inclined annular groove 91 which is inclined upwards is connected on the inner wall of the through hole, and an insert block 13 which is inserted into the inclined annular groove 91 is fixedly connected with the lower pressure rod 12, the rotating column 9 is driven by the bearing block 2 to rotate, the lower pressing rod 12 can only slide up and down and cannot rotate together with the rotating column 9, the inclined ring groove 91 rotates together with the rotating column 9, the inclined ring groove 91 pushes the inserting block 13 to slide up and down periodically in the rotating process, the inserting block 13 drives the lower pressing rod 12 to slide up and down together, the lower pressing rod 12 intermittently presses the vibrating mechanism downwards and leaves the vibrating mechanism upwards, the elastic backing plate 6 vibrates up and down, the detection liquid in the centrifugal tube 32 is vibrated up and down and mixed uniformly, the up and down vibration of the vibrating mechanism is provided with power through the matching of the limiting inserting rod 5, the rotating column 9 and the lower pressing rod 12, driving mechanisms such as an electric cylinder and a motor do not need to be additionally arranged to drive the vibrating mechanism to vibrate up and down independently, the linkage effect among structures is improved, and the low-carbon concept of energy conservation and emission reduction is met.
Example three:
in the third embodiment, a vibration mechanism is disclosed on the basis of the second embodiment, that is: the vibrating mechanism comprises an extrusion plate 16 positioned right below a limiting slot 202 and six connecting plates 17 which are correspondingly arranged right below six bearing grooves 201 one by one, the extrusion plate 16 and the six connecting plates 17 are fixedly connected through connecting rods 18, a vibrating head 8 which extends upwards into the bearing groove 201 is fixedly connected above any one connecting plate 17, an elastic connecting block 7 is fixedly connected between the extrusion plate 16 and the bottom wall of a vibrating cavity 203, when a lower pressing rod 12 presses the extrusion plate 16 downwards, the extrusion plate 16 drives the connecting plates 17 to slide downwards through the connecting rods 18, the extrusion plate 16 slides downwards and compresses the elastic connecting block 7, when the lower pressing rod 12 leaves the extrusion plate 16 upwards, the extrusion plate 16 slides upwards under the elastic action of the elastic connecting block 7, the extrusion plate 16 drives the connecting plates 17 to slide upwards together through the connecting rods 18, the extrusion plate 16 is fixedly connected with a guide sliding rod 19 which slides downwards and penetrates through the elastic connecting block 7, and the bottom wall of the vibration cavity 203 is connected with a slide bar slot 204 for inserting a guide slide bar 19, the matching arrangement of the guide slide bar 19 and the slide bar slot 204 is used for limiting and guiding the up-and-down sliding process of the extrusion plate 16, the stability of the up-and-down sliding process of the extrusion plate 16 is improved, the guide slide bar 19 provides axial support for the elastic deformation process of the elastic connecting block 7, and the problem that the stability and the service life of the upward resetting process of the elastic connecting block 7 are influenced due to the fact that the elastic connecting block 7 is bent when being elastically compressed is avoided.
Example four:
in the fourth embodiment, a liquid feeding mechanism for injecting the diluent into the centrifugal tube 32 is added to the first embodiment, that is: the cover plate 4 is provided with six liquid feeding through grooves 41 which are respectively aligned with the six bearing grooves 201 one by one up and down, a liquid feeding mechanism communicated with the liquid feeding through grooves 41 is connected above the cover plate 4, an operator adds diluent into the centrifuge tubes 32 by driving the liquid feeding mechanism without arranging a moving mechanism to add the diluent into each centrifuge tube 32 one by one, and the liquid feeding efficiency is obviously improved while the moving mechanism is omitted;
the liquid feeding mechanism comprises six liquid pushing cylinders 22, piston push plates 23 are arranged in the liquid pushing cylinders 22 in an up-and-down sliding mode, the liquid pushing cylinders 22 are fixedly connected above the cover plate 4 and are communicated with the liquid adding through grooves 41 through communication holes 221, the inner diameters of the liquid adding through grooves 41 are larger than the inner diameters of the communication holes 221, stop blocks 24 are connected to the inner walls of the communication holes 221 in an up-and-down sliding mode, the stop blocks 24 are in contact fit with the inner walls of the communication holes 221 through rough surfaces, large friction force is generated between the stop blocks 24 and the inner walls of the communication holes 221, the stop blocks 24 are prevented from sliding downwards away from the communication holes 221 under the action of gravity of diluent, the stop blocks 24 are arranged to block the liquid pushing cylinders 22, the diluent in the liquid pushing cylinders 22 cannot flow through the communication holes 221, the diluent passes through the liquid adding through grooves 41 and enters the centrifuge tube 32, and the problem that the diluent flows out in advance is solved;
the stopper 24 is fixedly connected with the piston push plate 23 through a stopper connecting rod 25, the piston push plate 23 is fixedly connected with a push-pull rod 26 which extends upwards out of the liquid pushing cylinder 22, when diluent needs to be added into the centrifuge tube 32, the push-pull rod 26 is pushed downwards, the piston push plate 23 drives the stopper 24 to slide downwards through the stopper connecting rod 25, the stopper 24 leaves the communicating hole 221 downwards and enters the liquid adding through groove 41, the diluent flows downwards under the pushing action of the piston push plate 23 and the gravity action, the diluent flows downwards through the communicating hole 221, the liquid adding through groove 41 and enters the centrifuge tube 32, the push-pull rod 26 is pulled upwards after liquid adding is completed, the piston push plate 23 drives the stopper 24 to slide upwards through the stopper connecting rod 25 to reset, the stopper 24 blocks the communicating hole 221 again, and a worker can add liquid to the centrifuge tubes 32 simultaneously to improve the liquid adding efficiency, the upper end of the push-pull rod 26 is fixedly connected with a push-pull block 27, the push-pull block 27 is convenient for an operator to hold by hand, and the operator drives the push-pull rod 26 to slide up and down by pulling the push-pull block 27;
further, the liquid feeding mechanism further comprises a liquid storage box 28 for storing diluent inside, the liquid storage box 28 is communicated with the bottoms of the six liquid pushing cylinders 22 through liquid feeding pipes 29, the liquid storage box 28 feeds the diluent into the liquid pushing cylinders 22 through the liquid feeding pipes 29, one-way valves 30 for preventing the fluid from flowing into the liquid storage box 28 from the liquid pushing cylinders 22 are arranged at the positions where the liquid pushing cylinders 22 are communicated with the liquid feeding pipes 29, the diluent in the liquid pushing cylinders 22 is prevented from flowing back to the liquid storage box 28 by the aid of the one-way valves 30, liquid inlets of liquid inlet valves 31 are formed in the liquid storage box 28, the diluent is supplemented into the liquid storage box 28 through the liquid inlet valves 31 by an operator, the effect of supplementing the diluent into the liquid pushing cylinders 22 is achieved, and the problem of liquid shortage in the liquid pushing cylinders 22 is prevented.
The working principle is as follows: an operator adds diluent into the centrifuge tube 32 by driving the liquid feeding mechanism, the driving motor 3 drives the bearing block 2 to rotate, so that the centrifuge tube 32 in the bearing groove 201 rotates together, the bearing block 2 rotates and drives the rotating column 9 to rotate together by the clamping effect of the first clamping block 10 and the second clamping block 11, the lower pressure rod 12 can only slide up and down and cannot rotate together with the rotating column 9, the inclined ring groove 91 rotates together with the rotating column 9, the inclined ring groove 91 pushes the insert block 13 to periodically slide up and down in the rotating process, and the insert block 13 drives the lower pressure rod 12 to simultaneously slide up and down, so that the lower pressure rod 12 intermittently presses the vibrating mechanism downwards and leaves the vibrating mechanism upwards;
when the lower pressure rod 12 presses the vibration mechanism downwards, the vibration mechanism drives the vibration head 8 to leave the elastic backing plate 6 downwards, and the vibration mechanism slides downwards to enable the elastic connecting block 7 to generate elastic deformation, when the lower pressure rod 12 leaves the vibration mechanism upwards, the vibration mechanism slides upwards to reset under the elastic action of the elastic connecting block 7, the vibration mechanism drives the vibration head 8 to press the elastic base plate 6 upwards again, the vibration head 8 intermittently presses the elastic base plate 6 upwards and leaves the elastic base plate 6 downwards under the drive of the vibration mechanism, the elastic base plate 6 vibrates up and down under the action of the vibration head 8, the elastic base plate 6 vibrates up and down and enables the detection liquid in the centrifugal tube 32 to vibrate up and down, drive the rotatory, vibration head 8 of centrifuging tube 32 through carrier block 2 and drive the common cooperation of shaking from top to bottom of centrifuging tube 32 through elastic backing plate 6, further improve the mixing efficiency of detecting liquid and guarantee to detect the mixing effect of liquid.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an automatic liquid filler of centrifuging tube, includes bearing block (2) that a plurality of bearing tanks (201) were seted up to the upper end, its characterized in that: the bearing block (2) is rotatably arranged inside the outer box body (1), the bearing block (2) is driven to rotate by the driving motor (3), the upper end of the bearing block (2) is provided with a limiting slot (202) coinciding with the axis of the driving rod of the driving motor (3), a cover plate (4) is connected above the outer box body (1) in a sliding mode, the cover plate (4) is fixedly connected with a limiting insertion rod (5) extending into the limiting slot (202), the cover plate (4) is provided with a liquid feeding through groove (41) aligned with the bearing groove (201) up and down, and a liquid feeding mechanism communicated with the liquid feeding through groove (41) is connected above the cover plate (4);
an elastic cushion plate (6) is fixedly connected to the inner wall of the lower end of the bearing groove (201), the lower ends of the bearing groove (201) and the limiting slot (202) are communicated with the vibration cavity (203), a vibration mechanism is arranged in the vibration cavity (203) in a vertically sliding mode, an elastic connecting block (7) is fixedly connected between the vibration mechanism and the inner wall of the vibration cavity (203), and the upper end of the vibration mechanism is fixedly connected with a vibration head (8) which extends into the bearing groove (201) and presses the elastic cushion plate (6);
the lower end of the limiting inserted rod (5) rotates to extend out of a rotating column (9), the outer side of a column body of the rotating column (9) extending out of the limiting inserted rod (5) is fixedly connected with a first clamping block (10) with an opening at the lower end, the inner wall of the limiting slot (202) is fixedly connected with a second clamping block (11) which extends into the opening of the first clamping block (10) in a matched mode, a lower pressing rod (12) which is in extrusion press fit with a vibration mechanism extends out of the limiting inserted rod (5) in the sliding mode, the rotating column (9) is provided with a through hole for the lower pressing rod (12) to penetrate through along the axial direction of the rotating column, the inner wall of the through hole is connected with an inclined annular groove (91) which inclines upwards, and the lower pressing rod (12) is fixedly connected with an inserted block (13) which is inserted into the inclined annular groove (91);
the liquid feeding mechanism comprises a liquid pushing cylinder (22) with a piston push plate (23) arranged inside and arranged in an up-and-down sliding mode, the liquid pushing cylinder (22) is fixedly connected to the upper portion of a cover plate (4) and communicated with a liquid feeding through groove (41) through a communicating hole (221), a stop block (24) is connected to the inner wall of the communicating hole (221) in an up-and-down sliding mode, the stop block (24) is fixedly connected with the piston push plate (23) through a stop block connecting rod (25), and a push-and-pull rod (26) extending out of the liquid pushing cylinder (22) upwards is fixedly connected with the piston push plate (23).
2. The automatic liquid charger for centrifugal tubes according to claim 1, characterized in that: outer box (1) inner wall rotates and is connected with rotatory layer board (14), and bearing block (2) fixed connection is in rotatory layer board (14) upper end center department, rotatory layer board (14) lower extreme center department and driving motor (3) actuating lever fixed connection, and rotatory layer board (14) lower extreme fixedly connected with cover establish guide cylinder (15) in the actuating lever outside.
3. The automatic liquid charger for centrifugal tubes according to claim 1, characterized in that: the vibration mechanism comprises an extrusion plate (16) located right below a limiting slot (202) and a plurality of connecting plates (17) arranged right below a bearing groove (201) in a one-to-one correspondence mode, the extrusion plate (16) is fixedly connected with the connecting plates (17) through connecting rods (18), and a vibration head (8) is fixedly connected above the connecting plates (17).
4. The automatic liquid charger for centrifugal tubes according to claim 3, characterized in that: elasticity is even piece (7) fixed connection between stripper plate (16) and vibration chamber (203) diapire, and stripper plate (16) fixed connection has the direction slide bar (19) that the piece (7) is even to the lapse elasticity, and vibration chamber (203) diapire is connected with and supplies direction slide bar (19) male slide bar slot (204).
5. The automatic liquid charger for centrifugal tubes according to claim 1, characterized in that: spacing inserted bar (5) lower extreme is seted up and is supplied to rotate stretching out groove (51) that post (9) stretched out, and stretches out groove (51) upper end and be connected with inside and rotate spacing revolving groove (52) that set up spacing plectane (20), and rotate post (9) upper end and spacing plectane (20) fixed connection, spacing revolving groove (52) top is connected with inside sliding groove (53) that set up depression bar (12) down, and depression bar (12) pass sliding groove (53), spacing plectane (20) and rotation post (9) downwards in proper order down, sliding groove (53) lateral wall is connected with direction slide (54), and depression bar (12) fixed connection has slider (21) that slide insert in direction slide (54) down.
6. The automatic liquid charger for centrifugal tubes according to claim 1, characterized in that: the upper end of the push-pull rod (26) is fixedly connected with a push-pull block (27).
7. The automatic liquid charger for centrifugal tubes according to any one of claims 1 or 6, characterized in that: the liquid feeding mechanism further comprises a liquid storage tank (28), the bottom of the liquid storage tank (28) is communicated with the bottom of the liquid pushing cylinder (22) through a liquid feeding pipe (29), and a one-way valve (30) for preventing liquid from flowing into the liquid storage tank (28) from the liquid pushing cylinder (22) is arranged at the communication position of the liquid pushing cylinder (22) and the liquid feeding pipe (29).
8. The automatic liquid charger for centrifugal tubes of claim 7, wherein: the liquid storage tank (28) is provided with a liquid inlet in which a liquid inlet valve (31) is arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210840353.7A CN114904440B (en) | 2022-07-18 | 2022-07-18 | Automatic liquid feeder of centrifuging tube |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210840353.7A CN114904440B (en) | 2022-07-18 | 2022-07-18 | Automatic liquid feeder of centrifuging tube |
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| CN114904440A CN114904440A (en) | 2022-08-16 |
| CN114904440B true CN114904440B (en) | 2022-09-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3273916B2 (en) * | 1998-03-30 | 2002-04-15 | 日本たばこ産業株式会社 | Analysis pretreatment system |
| JP4409236B2 (en) * | 2003-09-09 | 2010-02-03 | 大塚電子株式会社 | Optical measuring device with autosampler |
| CN204746379U (en) * | 2015-06-16 | 2015-11-11 | 王燕 | It is simple and easy along with look foam test -tube rack |
| CN109046143B (en) * | 2018-09-26 | 2021-03-19 | 郑州大学第一附属医院 | Even device is shaken to paediatrics blood |
| CN209155916U (en) * | 2018-11-10 | 2019-07-26 | 赵传卫 | A kind of test tube used for blood test frame |
| CN209752954U (en) * | 2019-01-24 | 2019-12-10 | 遵义医学院附属医院 | Blood storage box |
| CN211963947U (en) * | 2019-10-30 | 2020-11-20 | 王洪美 | Automatic liquid sample diluting device for clinical laboratory of hospital |
| CN212417758U (en) * | 2019-12-12 | 2021-01-29 | 宁夏金域医学检验所（有限公司） | Improvement medical reagent mixes oscillator |
| CN212651732U (en) * | 2020-06-19 | 2021-03-05 | 浙江大学医学院附属邵逸夫医院 | Test-tube rack shakes even device |
| CN212942410U (en) * | 2020-06-28 | 2021-04-13 | 山东省日照市人民医院 | Liquid adding diluter for medical examination |
| CN214716166U (en) * | 2021-03-03 | 2021-11-16 | 尹卫卫 | Animal disease detection kit |
| CN215574153U (en) * | 2021-08-19 | 2022-01-18 | 李娟� | Liquid adding diluter for medical examination |
| CN216419482U (en) * | 2021-10-22 | 2022-05-03 | 海南科晶生物技术有限公司 | Rotatory misce bene centrifuging tube support of batch formula |
| CN216799609U (en) * | 2022-01-17 | 2022-06-24 | 常州康卫生物技术有限公司 | Centrifugal oscillation device for primer dissolution |
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